diff --git a/knockout/knockout.d.ts b/knockout/knockout.d.ts
index 48f550dfe..494b6f844 100644
--- a/knockout/knockout.d.ts
+++ b/knockout/knockout.d.ts
@@ -556,7 +556,13 @@ interface KnockoutBindingProvider {
 }
 
 interface KnockoutComponents {
-	register(componentName: string, definition: KnockoutComponentDefinition): void;
+    // overloads for register method:
+    register(componentName: string, config: KnockoutComponentRegister): void;
+    register(componentName: string, config: KnockoutComponentRegisterStringTemplate): void;
+    register(componentName: string, config: KnockoutComponentRegisterFnViewModel): void;
+    register(componentName: string, config: KnockoutComponentRegisterStringTemplateFnViewModel): void;
+    register(componentName: string, config: KnockoutComponentRegisterAMD): void;
+
 	isRegistered(componentName: string): boolean;
 	unregister(componentName: string): void;
 	get(componentName: string, callback: (definition: KnockoutComponentDefinition) => void): void;
@@ -566,6 +572,50 @@ interface KnockoutComponents {
 	getComponentNameForNode(node: Node): string;
 }
 
+/* interfaces for register overloads*/
+
+interface KnockoutComponentRegister {
+    template: KnockoutComponentTemplate;
+    viewModel?: KnockoutComponentConfigViewModel;
+}
+
+interface KnockoutComponentRegisterAMD {
+    // load self-describing module using AMD module name
+    require: string;
+}
+
+interface KnockoutComponentRegisterFnViewModel {
+    template: KnockoutComponentTemplate;
+    viewModel?: (params: any) => any;
+}
+
+interface KnockoutComponentRegisterStringTemplate {
+    template: string;
+    viewModel?: KnockoutComponentConfigViewModel;
+}
+
+interface KnockoutComponentRegisterStringTemplateFnViewModel {
+    template: string;
+    viewModel?: (params: any) => any;
+}
+
+interface KnockoutComponentConfigViewModel {
+    instance?: any;
+    createViewModel? (params?: any, componentInfo?: KnockoutComponentInfo): any;
+    require?: string;
+}
+
+interface KnockoutComponentTemplate {
+    // specify element id (string) or a node
+    element?: any;
+    // AMD module load
+    require?: string;
+}
+
+interface KnockoutComponentInfo {
+    element: any;
+}
+/* end register overloads */
 interface KnockoutComponentDefinition {
 	template: Node[];
 	createViewModel?(params: any, options: { element: Node; }): any;
diff --git a/knockout/tests/knockout-tests.ts b/knockout/tests/knockout-tests.ts
index 6d4c9e25d..82b5aa25c 100644
--- a/knockout/tests/knockout-tests.ts
+++ b/knockout/tests/knockout-tests.ts
@@ -602,4 +602,49 @@ function test_allBindingsAccessor() {
             var fnAccessorBinding = allBindingsAccessor().myBindingName;
         }
     };
+}
+
+function test_Components() {
+
+    function test_Register() {
+        // test all possible ko.components.register() overloads
+        var nodeArray = [new Node, new Node];
+        var singleNode = new Node;
+
+        // ------- string-templates with different viewmodel overloads:
+
+        // string template and inline function (commonly used in examples)
+        ko.components.register("name", { template: "string-template", viewModel: function (params) { return null; } });
+
+        // string template and instance vm
+        ko.components.register("name", { template: "string-template", viewModel: { instance: null } });
+
+        // string template and createViewModel factory method
+        ko.components.register("name", { template: "string-template", viewModel: { createViewModel: function (params: any, componentInfo: KnockoutComponentInfo) { return null; } } });
+
+        // string template and require module vm
+        ko.components.register("name", { template: "string-template", viewModel: { require: "module" } });
+
+        // ------- non-string templates 
+
+        // viewmodel as function and four types of template
+        ko.components.register("name", { template: { element: "elementID" }, viewModel: function (params) { return null; } });
+        // Node template for element and inline function (commonly used in examples)
+        ko.components.register("name", { template: { element: singleNode }, viewModel: function (params) { return null; } });
+        // object template for element and inline function (commonly used in examples)
+        ko.components.register("name", { template: nodeArray, viewModel: function (params) { return null; } });
+        // object template for element and inline function (commonly used in examples)
+        ko.components.register("name", { template: { require: "module" }, viewModel: function (params) { return null; } });
+
+        // viewmodel as object, and four types of non-string tempalte
+        ko.components.register("name", { template: { element: "elementID" }, viewModel: { instance: null } });
+        // Node template for element and inline function (commonly used in examples)
+        ko.components.register("name", { template: { element: singleNode }, viewModel: { instance: null } });
+        // object template for element and inline function (commonly used in examples)
+        ko.components.register("name", { template: nodeArray, viewModel: { instance: null } });
+        // object template for element and inline function (commonly used in examples)
+        ko.components.register("name", { template: { require: "module" }, viewModel: { instance: null } });
+
+        //
+    }
 }
\ No newline at end of file